Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 2 de 2
Filter
Add filters








Year range
1.
MHSalud ; 18(2)dic. 2021.
Article in Spanish | LILACS, SaludCR | ID: biblio-1386150

ABSTRACT

Resumen La monitorización de las demandas físicas durante partidos de fútbol con tecnologías GPS proporciona información valiosa que puede ser utilizada para potenciar el rendimiento deportivo. Por tanto, el objetivo de este estudio fue conocer las demandas físicas de jugadores profesionales costarricenses de fútbol, así como analizar la influencia de la posición de juego y el nivel competitivo durante partidos. Sesenta futbolistas masculinos, 50 de la primera división del fútbol costarricense y 10 de una selección nacional absoluta de CONCACAF (SAC), fueron monitoreados con un Sistema de Posicionamiento Global (GPS) para cuantificar variables cinemáticas como la distancia recorrida (m), total y a diferentes intensidades (Z 1-5), velocidad máxima (km/h), impactos totales (g), aceleraciones (m/s) y desaceleraciones (m/s). Las posiciones de juego se categorizaron en: defensas (Def), mediocampistas (Med) y delanteros (Del), y el nivel competitivo en: a) SAC, b) Equipos de nivel élite (ENE) y c) Equipos de nivel sub-élite (ENS). Los resultados reflejaron diferencias significativas respecto al nivel competitivo en la distancia recorrida a diferentes intensidades Z1 (SAC >ENS >ENE), Z2 (ENE >SAC >ENS) y Z4 (ENE >SAC >ENS), aceleraciones (SAC >ENE >ENS) y en desaceleraciones (SAC >ENS >ENE). Por posiciones de juego, las diferencias estuvieron en la distancia total (Med >Def >Del), en la distancia recorrida en Z2 (Med >Def >Del) y Z3 (Med >Def >Del), así como en impactos totales (Med >Def >Del). Se concluye que el nivel competitivo influye sobre las demandas físicas. SAC registró más aceleraciones y desaceleraciones y, ENE recorrió mayor distancia a esfuerzos moderados e intensos. Existen diferencias en las posiciones de juego, los mediocampistas recorrieron mayores distancias y registraron más impactos.


Abstract Monitoring physical demands during soccer matches with GPS technologies provides valuable information that can be used to enhance sports performance. Therefore, this study aimed to know Costa Rican professional soccer players' physical demands and analyze the influence of the playing position and the competitive level during matches. Sixty male soccer players, 50 from the first division of Costa Rican soccer and 10 from an absolute national CONCACAF (SAC) team were monitored with a Global Positioning System (GPS) to quantify kinematic variables such as distance traveled (m), total and different intensities (Z 1-5), maximum speed (km/h), total impacts (g), accelerations (m / s) and decelerations (m/s). The game positions were categorized into defenses (Def), midfielders (Mid) and forward (For), and the competitive level in a) SAC, b) Elite level teams (ENE), and c) Sub-elite level teams (ENS). The results reflected significant differences regarding the competitive level in the distance traveled at different intensities Z1 (SAC >ENS >ENE), Z2 (ENE >SAC >ENS) and Z4 (ENE >SAC >ENS), in accelerations (SAC >ENE >ENS), and in decelerations (SAC >ENS >ENE). By game positions, the differences were in the total distance (Mid >Def >For), in the distance traveled in Z2 (Mid >Def >For) and Z3 (Mid >Def >For), as well as in total impacts (Mid >Def >For). It is concluded that the competitive level influences the physical demands. SAC registered more accelerations and decelerations, and ENE traveled a greater distance with moderate and intense efforts. There were differences between playing positions; midfielder traveled longer distances and recorded more impacts.


Resumo O monitoramento das demandas físicas durante partidas de futebol com tecnologias GPS fornece informações valiosas que podem ser usadas para aprimorar o desempenho atlético. Portanto, o objetivo deste estudo foi conhecer as demandas físicas dos jogadores de futebol profissional da Costa Rica, bem como analisar a influência da posição de jogo e do nível competitivo durante os jogos. Sessenta jogadores de futebol masculino, 50 da primeira divisão do futebol costarriquenho e 10 da seleção nacional absoluta da CONCACAF (SAC), foram monitorados com um Sistema de Posicionamento Global (GPS) para quantificar variáveis cinemáticas como distância percorrida (m), total já diferentes intensidades (Z 1-5), velocidade máxima (km / h), impactos totais (g), acelerações (m / s) e desacelerações (m / s). As posições de jogo foram categorizadas em: defensores (Def), meio-campistas (Med) e atacantes (Del), e o nível competitivo em: a) SAC, b) Times de elite (ENE) e c) times de nível pré-elite (ENS). Os resultados refletiram diferenças significativas em relação ao nível competitivo na distância percorrida em diferentes intensidades Z1 (SAC> ENS> ENE), Z2 (ENE> SAC> ENS) e Z4 (ENE> SAC> ENS), acelerações (SAC> ENE> ENS) e em desacelerações (SAC> ENS> ENE). Por posições de jogo, as diferenças foram na distância total (Med> Def> Del), na distância percorrida em Z2 (Med> Def> Del) e Z3 (Med> Def> Del), bem como nos impactos totais (Med > Def> Del). Conclui-se que o nível competitivo influencia as demandas físicas. O SAC registrou mais acelerações e desacelerações, e a ENE percorreu uma distância maior com esforços moderados e intensos. Existem diferenças nas posições de jogo, os meio-campistas percorreram distâncias maiores e registraram mais impactos.


Subject(s)
Humans , Male , Adult , Soccer , Biomechanical Phenomena , Competitive Behavior , Costa Rica
2.
Japanese Journal of Physical Fitness and Sports Medicine ; : 413-423, 2013.
Article in English | WPRIM | ID: wpr-374538

ABSTRACT

The purpose of this study was to clarify the body composition and blood profile in college American football players, and whether the differences can be referred to their playing positions; Lines vs Backs. Body compositions, blood profile and nutrients intake were investigated. The Linemen showed a significant higher %BF than Backs, and most of the Linemen were assessed as obese according to their %BF and BMI. The risk of dyslipidemia in Linemen was higher than that in the Backs. There were no obvious difference between Linemen and Backs in their intake amount of energy and all nutrients per person. However, when compared in per body-weight, the intake amount of energy and 3 major nutrients were significantly low in Linemen than Backs. Furthermore, the data indicate that dietary awareness and diet behavior are relatively poor in the Linemen. Since body weight is the most crucial factor of Linemen for their playing performances, it can be speculated that their necessity to gain body weight may have led them to be obesity. Since weight-gain is not desirable in the aspect of metabolic disorders prevention, our result indicated that Linemen, rather than the Backs, are the potential target who need an appropriate nutritional support by dietician to control their nutritional intake and body weight, not only for achieving sport performance but also for preventing metabolic disorders. Therefore, it was suggested that periodical survey of blood profile and body composition, together with appropriate nutritional support by dieticians, may be helpful for Linemen, in future.

SELECTION OF CITATIONS
SEARCH DETAIL